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#ifndef SysCSStream_Included
#define SysCSStream_Included

#include <netinet/in.h>
#include "CSStream.hpp"

/**
 * A socket implementation of a CSStream for Unix. This is a
 * base class that reads writes to a socket independently of how
 * the socket is instantiate.
 */
class SysSocketConnection : public ApiConnection
{
public:
    inline SysSocketConnection() : c(-1), ApiConnection() { }
    inline SysSocketConnection(int sock) : c(sock), ApiConnection() { }
    inline ~SysSocketConnection() { }

    bool read(void *buf, size_t bufsize, size_t *bytesread) override;
    bool write(void *buf, size_t bufsize, size_t *byteswritten) override;
    bool write(void *buf, size_t bufsize, void*buf2, size_t buf2size, size_t *byteswritten) override;

    bool disconnect() override;

protected:
    int c; // stream socket
};


/**
 * This is the client stream for an AF_UNIX style connection.
 */
class SysLocalSocketConnection : public SysSocketConnection
{
public:
    SysLocalSocketConnection() : SysSocketConnection() { };
    SysLocalSocketConnection(const char *service);
    ~SysLocalSocketConnection() { };

    bool connect(const char *serviceName);
};


/**
 * Base class for all socket-based server connections. The subclasses
 * provide all of the setup around the socket.
 */
class SysServerSocketConnectionManager : public ServerConnectionManager
{
public:
    inline SysServerSocketConnectionManager() : c(-1) { }
    inline ~SysServerSocketConnectionManager() { }

    bool disconnect() override;
    ApiConnection *acceptConnection() override;

protected:
    int c; // stream socket
    const char *boundServiceName;        // the service we are bound to
};

/**
 * Implementation class for a socket connection bound to
 * an AF_UNIX stream
 */
class SysServerLocalSocketConnectionManager : public SysServerSocketConnectionManager
{
public:
    inline SysServerLocalSocketConnectionManager() { }
    inline ~SysServerLocalSocketConnectionManager() { }

    bool bind(const char *serviceName);

    static const char *generateServiceName();
    static void getServiceLocation(char *path, size_t len);

protected:

    bool checkServiceName(const char *serviceName);

    const char *boundServiceName;        // the service name this instance is bound to.
    static const char *userServiceName;  // the standard service name generated for each user.
};
#endif